Scale.



H, S. HALLWGOD.

SCALE.

APPLICATION FILED JUNE z?, 190e.

'Patente Sept. 13,1910.

'2 slums-SHEET 1'.

' y TM5 mmw H, S. HALLWOOD.

SCALE.

APPLICATION FILED JUNE 27, 1906.

Batsnted Sept. i3, i919.

2 SHEETS-SHEET 2.

/Afl//NfO// I WY T/VESSES:

w72@ ww HENRY-S. EALLWOOD, QF COLUMBUS, OHIO.

SCALE.

To all wiz/om @t may concern.'

Be it known that l, HENRY S. HaLLwoon, residing at Columbus, in the county of Franklin and State ot Ohio, have invented a ycertain new and useful Improvement in Scales, of which the following is a full,

clear, and exact description, reference being had to the accompanying drawings'.

My invention relates `to pendulum computing scales and has for its object to improve and simplify the construction there ot'. In the operation of such scales are provided with an index hand movable across the "face or" a chart having thereon munerals indicatingthe weight and values of commodities at different. prices per pound (or other unit ot weight) lunch inconvenience and loss of timev have. been occasioned by reason ot' the fact thatl the index hand covers the desired graduations and numerals in advance otl the registering of the reading edge ot' the. hand with the saine. As av result, the operator generally places on the scale pan .a greater quantity ot' the commodity than 1s necessary and then brings the index hand-t the desired position by removing a portion el' the commodity from the pan. Furthermore. the index hand, in many positions` covers up the nearest numeral -provided graduation and. in order to ascertain what value .it thtI commodity represented by the quantity on the scale pau. it is necessary to take a numeral and a graduation a consider able distance from the indexaud count from such numeral and graduation to the index. whereas. if the nearest numeral-provided graduation were not concealed by the index hand, the value ot the commodity on the scale could be read at a glance.

The object of my invention is to a construction which will eliminate jections above noted.

Further objects of the invention are to provide simple and effective means for asprovide the obeertainiug at a glance, the desired computation numeral on the chart; to provide novel and etfective means for supporting the rotarvdruin which carries the index hand: to provide a novel form ot' said drum: to provide an improved construction ot' dashpot; to provide improved mean` tor supporting the lower end ot the. stem or post which carries the scale pan or platform; and, generally. to improve the etiicieuey of scales of this type.

Specification of Letters Patent.

Application filed June 27, 1906.

Patented sept. is, i910. Serial No. 323,553.

teferring to the drawings forming part hereof, Figure l represents an end elevation ot' a scale built in accordance with my invention, the casing and part o't the trame being broken away to illustrate the drum and the manner-,of supporting the index-carrying arm; Fig. 2 represents a vertical sectional view on the correspondinglyv numbereql line of Fie. l; Fig. 3 represents a detail of the back or reverse side ot the chart, showing the arm which indicates to the customer the weight ot the article; Fig. 4 represents a perspective view of the frame which supports the drum; Fig. 5 represents an enlarged elevational detail of the drum, showing the manner in which the index and the weight pendulum are supported thereby, said view showing the reverse side of the drum shown in Fig. l; Fig. 6 represents asimilar view of said drum, taken at right angles to Fig. 5; Fig. 7 represents a sectional detail of the dashpot, the end of the scale beam and` certain other parts being shown in elevation Fig. 8 represents a detail in plan of said dashpot: Fig. Sl'represents an enlarged detail of the operators index hand; Fig. 10 represents an enlarged sectional detail of said hand; Fig. l1 represents a detail of the stem or post which carries the scale pan or platformI` the scale pan or platform in this view being of slightly diilerent contour from that shown in Fig. Q: and Fig. IQ represents a detail of the link which supports the lower end of the said stem or post.

Describing the parts by reference numerals, l represents the base of the platform or scale. The base supports at one end the pillar 2 which carries brackets 3 to which are pivoted the branches of the scale beam 4, the upper edges of said branches being provided with the usual agate. bearings forreceiving the knife blade pivots carried by brackets 6 which depend from the scalepan or platform 7.

Atthe opposite end of the platform .is supported the casing -8 Within which the chart, drum, movable index and dashpot are located. As will appear from Fie. l, the lower part ot' the casing is enlargedtlaterally yto provide a space within which the pendulum may swing.' Above this enlarged space, it is contracted inwardly at 9, whence it is again enlarged laterally to rovide accommodation of the e iart l0.

room for the Within the contracted portion or neck 9 is loo device extending outside of the. casing and convenient of access to the operator.

A small bumper 4'( is carried by the upper portion of the enlargement of the casing hereinbefore described, the lframe 10() being slotted at the lower edge to permit the passage of the rod 15. The purpose of thls bumper is to engage the weight 16 at the upper limit of its movement and thus, with the dashpot, protect the parts from jar and shock when a wei ht of commodity considerably in excess ot the capacity of the scale is placed on the pan.

The upper or chart-receiving portion of the casing is substantially open, front and bach, and there is secured within thesame, in any suitable manner, the chart or table 10 hereinbefore referred to.

both sides thereof, `with aseries of graduations a indicating ounces and a corresponding series of numerals f1 indicating pounds. ln the dra wing, I have shown a tivefpound chart. for clearness of illustration, although it will be apparent that a chart having a larger capacity may be employed. This .chart is provided with concentric series of graduations,'the graduations of eachfseries indicating the values of different commodities at ditt'erent prices per pound (or other unit of weight.) At convenient intervals, each series of graduations is provided with numerals c indicating' the totalvvalues of commodities at dili'erent prices per pound (or other unit of weight). F or instance, the outer arc d is provided with series of graduations corresponding to twenty-four cents per pound. The are corresponding to this rate is divided into a convenient number of graduations representing a'convenient fractional part of the price per pound. For clearness of illustration,A I have shown the arc (l as divided into one hundred-twenty equal parts, each division representing a value of one cent. With these graduations i prefer to place the figures representing the values atsuch placesas" will enable me to use multiples of 5 for convenience of reading. In the same manner, each other series of graduations is provided with suitable. numerals indicatingthe values of commodh ties at diterent prices per pound, the same principle being foilowed as Ato dividing the arc and applying numerals thereto which has been set forth in connection with the first series of graduation. ln order to fa-l cilitate the Vreading of the. weight, price'per pound, and value oi any commodity, l employ with such chart the index hands 1t) and Q1 suitably secured to thel casting 17 and extending across the face of thc chart, as indicated more particularly in'Figs. 1. 2, 9, and 10. The hand 19',bei ng on.the rustoniers side. of the chart. cooperates with a scale indicating weight only.

This chart is provided, near the upper periphery and on,l

` placed on the same steel plate and opaque Y therefrom.

The right hand side of the operators index hand is opaque, the opaque side being preferably white in color and having numerals e t-hereon'which are preferably red to present a strong contrast against theopaque background., rhe left-hand side of the 1ndex hand is transparent and carries, near the edge thereof, a reading line 48, which coincides in direction with a line drawn from the knife edge pivot. The numerals c are arcs as the computation numerals on the chart which represent total values of commodities at the prices per pound represented by such numerals (A. To facilitate reading, I provide the index hand 21 with concentric arcs 21a which aro described from the knife-edge pivot 14 as a center. with the same radii as the arcs on the chart. This contines the vision to the computation figures and price figures between coincident arcs, or, in other words, the concentric lines on the index hand direct the eye between the coperatiiig arc lines upon the chart. -ln actual practice, I have made thetransparent. portion of the hand about onequarter an inch Wide and the opaque portion somewhat Wider, with the reading line about one sixteenth of an inch from the left hand edge of the hand. This reading line may be red or of anycolor which will afford contrast against the face of the chart. iVhile the index hand 21 may be of a single piece of Celluloid or other transparent material, to afford stiffness and prevent warping l prcfer to construct it in the manner shown in Figs. Sand 10, .wherein Q1" represents thc transparent Celluloid. on the front of and at one side of which is the opaque cclluloid 21, which carries the nmnerals. A thin steel plate 21d embraces thcI portion of the transparent cclluloid which is beneath the opaque celluloid and is bent around and cmbraccs the right hand edge of the latter. Rivets 21e secure the left hand edges of the celluloid tothe transparent Celluloid. A

'By the above arrangement' and construction of index hand; and chart. quick and accurate readingr of the sanu` is obtained. For instance, as shown inthe drawing, the index hand has :omplcteyly covered thenumeral 5, which indicates the'lralue of a commodity at four cents per pound, and has partly cov` `ered other numerals ou the chart. 'lhc nu- Ameral 4, which is on the index hand. is directly opposite the. immoral 5, but. vbeing of contrasting color. is easil v distinguished ln order to read the value pf the commodity, it is not necessary for the open ator to begin at the left hand of the arc and count the graduations to-the point of intersection of the reading line ofthe index hand with such arc, but he can sec at a glance that thevalue of thc-conunmlity is less than oni. graduation'removed from the first-mentioned side provided adjacent its edge With a reading line, and a support for f commodities operatively connected with one of said members, substantially as specilied.

5. In a computing scale, the combination of a chart member having thereon numerals indicating the values of commodities at dit'- ferent prices per unit Weight, an indicating member having one side thereotl transparent and the other side opaque and provided with numerals indicating the prices per unit Weight-of such commodities, the transparent side being provided near the edge thereof with a reading line, and a support for such commodities operatively connected with one of said members, the numerals on said members being arranged so that those on one member will register with those on the other member when brought into juxtaposition, substantially as Specified.

6. In ascale, the combination of a cas ing, a chart member therein, of a rotary drum by which one of said members is carried, said drum having knife edge pivots, and an open frame for supporting said drum, said frame extending transversely of said casing and being secured thereto, said frame having bearings for the said pivots, substantially as specified.

7. In a scale, the combinationof a casing having an enlarged base and a contracted portion above such base, a frame detachably supported Within the contracted portion of the casing and having bearings therein, gaging said bearings, an index carried by said drum, a chart With which said index cooperates, and a pendulum projecting from said drum into the enlarged portion ot the casing, substantially as specified.

` ln a scale, the combination of a fixed and a rotatable indicatingr member, a rotary drum, a carrier for the rotatable member, said carrier having an arm projecting above .said drum .and a counterbalance extension projecting below said drum, and means for ad jwisiably securing said carrier to said drum', substantially as specified.

9. In a scale, the combination ot' a fixed and a rotatable indicating member, a ro` tary/drum for the latter member, a carrier for said rotatable member extending across said'drum and secured thereto, said carrier having an arm by which the rotatable inemlpifr is carried and an extension projecting below said drum tohcoiinterbalance said rotatable indicating member, and means for adjusting the position of said carrier With respect to said drum, substantially as speciiied.

lo. ln a pendulum computingr scale, the combination ot' a fixed and a rotatable iiidmitiug member, a rotary drum vfor the latter member, a scalo beam, a connection a drum provided with pivots en-v a contracted portion above between said scale beam and said drum, a counterbalance t'or said rotatablil member comprising a downwardly extending arm, a weight pendulum carried by 'such coiinterbalance, and means for adjusting the coiinterbalanrc relatively to the-drum pivot, substantially as specified.

ll. In a pendulum computing scale, the combination of a lixed and a rotatable indicating member, a rotary drum, a carrier for said rotatabln member having an arm projectin i' above the drum and supporting the rotata le member and a coiinterbalance extension projecting below the drunnga pendiilum carried by said carrier, ya'scale beam connected to said drum, and' means .for adjusting the position of said carrier with respect to the drum pivot, substantially as specilied.

l2. In Ia computing scale, the combination of a casing having an enlarged base and said base, a frame supported Within the contracted portion of the casing and having bearings therein, a drum provided with pivots engaging said bearings, a pendulum projecting from said drum into the enlarged portion of the-casing, a bumper in said casing positioned to receive the impact of the pendulum at the end of the stroke thereof, the frame being provided with a recess in the lower edce thereof to permit the engagement of the pendulum with 'the bumper, substantially as specified.A r

13. The combination of a casing, a scale beam projecting into said casing, a dash ot in said casing having a piston connect to said beam, said piston being provided with a perforation, a valve for said perforation,

and means, extending outside the casing, for' operating' said valve, substantially specitied. 14. The combination of a casing, a dashpot in said casing comprising a cylinder member and a piston member, a scale beam extending into the casing and connected to one of said members, the piston being constructed to permit the flow oftluid from one side tbereoi'f to the other, and means extending outside the casing for controlling the rate of such flow of the fluid, substantially as specified.

l5. The combination or" a casing, a dashpot in said casingl comprising a cylinder member and a piston member, a scale beam extending into the casing and connected to one ot said members, the piston being constructed to permit the tlow of fiiiid from one side thereof to the other, and means extending outside the casing and supported by thc scale beam for controlling the rate of flow j ot' such tliiid, substantially as specified.

lf3. The combination ot' a casing, a dashpot {hoi-ein comprising a cylinder and a perforated piston, a'scalo beam extending lol 'and a rotatable n second iink'projecting into the bifurcted end of the first link pivots engaging the otal support for the other end of thelast mentioned iinilt, land. means engaging said. link intermediate the ends thereof for Yertice1 adjustment thereof, substantially as specinndniying knife edge I29. In a, soae, the combination of a'ligied indicating member, e rotary drum for the latter member, a carrier for said rotatable member secured to said dr'm, n scale beam, a flexible band or tape connected to said Scale beamend extending over the top of the drum-and-seonred thereto, a lug projecting from the drum, :L lug projecting from the carrier, and e screw extending `through one of seid lugs and benringshereof, e Piva 

